Evaluation of the effect of the disaster prevention technique using coastal farmlands Kiri H. and H. Tanji National Institute for Rural Engineering National.

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Presentation on theme: "Evaluation of the effect of the disaster prevention technique using coastal farmlands Kiri H. and H. Tanji National Institute for Rural Engineering National."— Presentation transcript:

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Evaluation of the effect of the disaster prevention technique using coastal farmlands Kiri H. and H. Tanji National Institute for Rural Engineering National Agriculture and Food Research Organization (NARO) 1

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To prevent huge tsunami disasters What should we do? Committee for Technical Investigation on Countermeasures for Earthquakes and Tsunamis Based on the Lessons Learned from the Earthquake The Central Disaster Management Council 5 The tsunami disaster in this scale is not a just once experience. It repeat in 600 to 1,000 years.

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The Disaster-prevention farmland 7 Moving settlements near the coast to hilltops. Readjusting large farms in the lowland area along the coast. Permitting flooding of farmland in the case of a tsunami or a storm surge exceeding the planned height. Having the function of a second dike assigned to inland roads and protecting property and human lives in evacuation space. Concept

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Conclusions 16 The effect of coastal farmland for flood prevention technique was evaluated by hydraulic model test. The disaster prevention technique using coastal farmlands dissipates the energy of tsunami run-up. The result of the hydraulic model test indicated that coastal farmlands decrease tsunami run-up for two minutes. The effect of the disaster-prevention farmland at a model coast is also confirmed by a numerical simulation.